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The University of Maine

Hydrology

Articles 1 - 7 of 7

Full-Text Articles in Physical Sciences and Mathematics

Giving Form To Flow: Modeling The Paleohydrological Context For Human Settlement And Water Use In The North-Central Coast Of Peru, Elizabeth Leclerc May 2022

Giving Form To Flow: Modeling The Paleohydrological Context For Human Settlement And Water Use In The North-Central Coast Of Peru, Elizabeth Leclerc

Electronic Theses and Dissertations

Within coastal Andean archaeology there is a growing emphasis on the roles of hydrology and hydrological knowledge in Andean strategies for water management, settlement, and land use. Hydrological methods can not only help reconstruct past water environments but also illuminate the influence of changing climates and conditions in the Andean highlands on coastal water flows. Through a case study of the Supe River basin in north-central coastal Peru, focusing on the period from 5000 to 3000 calibrated radiocarbon years before present (cal. BP), I review several hydrological methods useful for archaeological study. I then combine these to develop a paleohydrological …

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Arcmap Hydrology Toolset: Wpes, How Do I...? Quick Guide, Bea E. Van Dam Jan 2022

Arcmap Hydrology Toolset: Wpes, How Do I...? Quick Guide, Bea E. Van Dam

Non-Thesis Student Work

This document provides guidance for performing hydrologic tasks using the Hydrology Toolset in ArcMap 10.x (ArcGIS Desktop). Covered here are an overview of the uses and limitations of the tools within the Hydrology Toolset, related tools from from additional ArcGIS toolsets, and step-by-step instructions for hydrologic workflows including digital elevation model (DEM) preparation, pit fill detection, "burning in" culverts for proper flow path routing, watershed and stream network delineation, and flow network statistics.

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Collaborative Research: Interactive Effects Of Chronic N Deposition, Acidification, And Phosphorus Limitation On Coupled Element Cycling In Streams, Kevin S. Simons, Ivan J. Fernandez, Stephen A. Norton Jul 2014

Collaborative Research: Interactive Effects Of Chronic N Deposition, Acidification, And Phosphorus Limitation On Coupled Element Cycling In Streams, Kevin S. Simons, Ivan J. Fernandez, Stephen A. Norton

University of Maine Office of Research Administration: Grant Reports

The overarching goal of this project is to understand how chronic acidification and nitrogen enrichment of watersheds influences coupled biogeochemical cycling in streams. Embedded in the project were two primary research elements: 1) examining nitrogen satuartion and the extent of coupling between nitrogen and phosphorus cycling and 2) resolving the interactions among acidification, phosphorus bioavailability and biotic demand for nitrogen and phosphorus. The research involved a series of stable isotope tracer experiments to document nitrogen uptake under ambient and elevated phosphrous conditions and examination of a suite of key microbial processes (denitrification, decomposition, microbial enzyme activity) at two whole-watershed experiment …

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Climate, Agricultural Strategies, And Sustainability In The Precolumbian Andes, Charles Ortloff, Michael E. Moseley Nov 2009

Climate, Agricultural Strategies, And Sustainability In The Precolumbian Andes, Charles Ortloff, Michael E. Moseley

Andean Past

No abstract provided.

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Examination Of Selected Microparticles From The Sentik Glacier Core, Ladakh, Himalayas, Emily Goss, Paul Andrew Mayewski, William Berry Lyons Jan 1985

Examination Of Selected Microparticles From The Sentik Glacier Core, Ladakh, Himalayas, Emily Goss, Paul Andrew Mayewski, William Berry Lyons

Earth Science Faculty Scholarship

Several characteristics and interpretive comments are reported for microparticles from selected samples in the Sentik Glacier core. Four basic morphologic groups are defined: Platy, angular, biogenic, and anomalous.

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Interpretation Of The Chemical And Physical Time-Series Retrieved From Sentik Glacier, Ladakh Himalaya, India, Paul Andrew Mayewski, N. Ahmad, Gordon Smith, M. Pourchet Jan 1984

Interpretation Of The Chemical And Physical Time-Series Retrieved From Sentik Glacier, Ladakh Himalaya, India, Paul Andrew Mayewski, N. Ahmad, Gordon Smith, M. Pourchet

Earth Science Faculty Scholarship

Spectral analysis of time series of a c. 17 ± 0.3 year core, calibrated for total β activity recovered from Sentik Glacier (4908 m) Ladakh, Himalaya, yields several recognizable periodicities including sub-annual, annual, and multi-annual. The time-series, include both chemical data (chloride, sodium, reactive iron, reactive silicate, reactive phosphate, ammonium, δD, δ(18O) and pH) and physical data (density, debris and ice-band locations, and microparticles in size grades 0.50 to 12.70 μm). Source areas for chemical species investigated and general air-mass circulation defined from chemical and physical time-series are discussed to demonstrate the potential of such studies in the …

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A Recent Decline In Available Moisture In Northern Victoria Land, Antarctia, Paul Andrew Mayewski, John W. Attig Jr Jan 1978

A Recent Decline In Available Moisture In Northern Victoria Land, Antarctia, Paul Andrew Mayewski, John W. Attig Jr

Earth Science Faculty Scholarship

Evidence from two areas in northern Victoria Land, Antarctica demonstrate that available moisture has been declining since at least I 265 B.P. The cause is not known.

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